Go to Lowe’s or Home Depot and get a reducer bushing that accepts a barbed fitting that the hose will seal onto. You may need to get a 1.5” to 1” reducer then a 1” to 1/4” (or 1/8”) NPT, which the barbed fitting will screw into. https://www.amazon.com/Amflo-406-Brass-Barb-Fitting-3/dp/B0195V43V6